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Schiavo M, Giambastiani BMS, Greggio N, Colombani N, Mastrocicco M. Geostatistical assessment of groundwater arsenic contamination in the Padana Plain. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 931:172998. [PMID: 38714254 DOI: 10.1016/j.scitotenv.2024.172998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 03/29/2024] [Accepted: 05/02/2024] [Indexed: 05/09/2024]
Abstract
Arsenic (As) in groundwater from natural and anthropogenic sources is one of the most common pollutants worldwide affecting people and ecosystems. A large dataset from >3600 wells is employed to spatially simulate the depth-averaged As concentration in phreatic and confined aquifers of the Padana Plain (Northern Italy). Results of in-depth geostatistical analysis via PCA and simulations within a Monte Carlo framework allow the understanding of the variability of As concentrations within the aquifers. The most probable As contaminated zones are located along the piedmont areas in the confined aquifers and in the lowland territories in the phreatic aquifers. The distribution of the As contaminated zones has been coupled with hydrogeological, geological, and geochemical information to unravel the sources and mechanisms of As release in groundwater. The reductive dissolution of Fe oxyhydroxides and organic matter mineralization under anoxic conditions resulted to be the major drivers of As release in groundwater. This phenomenon is less evident in phreatic aquifers, due to mixed oxic and reducing conditions. This large-scale study provides a probabilistic perspective on As contamination, e.g. quantifying the spatial probability of exceeding national regulatory limits, and to outline As major sources and drivers.
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Affiliation(s)
- Massimiliano Schiavo
- Department of Land, Environment, Agriculture, and Forestry (TESAF), University of Padova, Via dell' Università 16, 35020 Legnaro, (PD), Italy
| | - Beatrice M S Giambastiani
- Department of Biological, Geological and Environmental Sciences (BiGeA) at Interdepartmental Centre for Environmental Sciences Research (CIRSA), Alma Mater Studiorum University of Bologna, Via S. Alberto 163, 48123 Ravenna, Italy
| | - Nicolas Greggio
- Department of Biological, Geological and Environmental Sciences (BiGeA) at Interdepartmental Centre for Environmental Sciences Research (CIRSA), Alma Mater Studiorum University of Bologna, Via S. Alberto 163, 48123 Ravenna, Italy
| | - Nicolò Colombani
- Department of Materials, Environmental Sciences and Urban Planning (SIMAU), Marche Polytechnic University, Via Brecce Bianche 12, 60131 Ancona, Italy.
| | - Micòl Mastrocicco
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies (DiSTABiF), Campania University "Luigi Vanvitelli", Via A. Vivaldi 43, 81100 Caserta, Italy
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Rashid A, Ayub M, Gao X, Khattak SA, Ali L, Li C, Ahmad A, Khan S, Rinklebe J, Ahmad P. Hydrogeochemical characteristics, stable isotopes, positive matrix factorization, source apportionment, and health risk of high fluoride groundwater in semiarid region. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:134023. [PMID: 38492393 DOI: 10.1016/j.jhazmat.2024.134023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/02/2024] [Accepted: 03/11/2024] [Indexed: 03/18/2024]
Abstract
Chronic exposure to high fluoride (F-) levels in groundwater causes community fluorosis and non-carcinogenic health concerns in local people. This study described occurrence, dental fluorosis, and origin of high F-groundwater using δ2H and δ18O isotopes at semiarid Gilgit, Pakistan. Therefore, groundwater (n = 85) was collected and analyzed for F- concentrations using ion-chromatography. The lowest F- concentration was 0.4 mg/L and the highest 6.8 mg/L. F- enrichment is linked with higher pH, NaHCO3, NaCl, δ18O, Na+, HCO3-, and depleted Ca+2 aquifers. The depleted δ2H and δ18O values indicated precipitation and higher values represented the evaporation effect. Thermodynamic considerations of fluorite minerals showed undersaturation, revealing that other F-bearing minerals viz. biotite and muscovite were essential in F- enrichment in groundwater. Positive matrix factorization (PMF) and principal component analysis multilinear regression (PCAMLR) models were used to determine four-factor solutions for groundwater contamination. The PMF model results were accurate and reliable compared with those of the PCAMLR model, which compiled the overlapping results. Therefore, 28.3% exceeded the WHO permissible limit of 1.5 mg/L F-. Photomicrographs of granite rocks showed enriched F-bearing minerals that trigger F- in groundwater. The community fluorosis index values were recorded at > 0.6, revealing community fluorosis and unsuitability of groundwater for drinking.
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Affiliation(s)
- Abdur Rashid
- State Key Laboratory of Biogeology and Environmental Geology, School of Environmental Studies, China University of Geosciences, Wuhan 430074, PR China; National Centre of Excellence in Geology, University of Peshawar, 25130, Pakistan.
| | - Muhammad Ayub
- Department of Botany Hazara University, Mansehra PO 21300 Pakistan
| | - Xubo Gao
- State Key Laboratory of Biogeology and Environmental Geology, School of Environmental Studies, China University of Geosciences, Wuhan 430074, PR China.
| | - Seema Anjum Khattak
- National Centre of Excellence in Geology, University of Peshawar, 25130, Pakistan
| | - Liaqat Ali
- National Centre of Excellence in Geology, University of Peshawar, 25130, Pakistan
| | - Chengcheng Li
- State Key Laboratory of Biogeology and Environmental Geology, School of Environmental Studies, China University of Geosciences, Wuhan 430074, PR China
| | - Ajaz Ahmad
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sardar Khan
- Department of Environmental Sciences, University of Peshawar, PO 25120, Pakistan
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Laboratory of Soil, and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany
| | - Parvaiz Ahmad
- Department of Botany, GDC, Pulwama 192301, Jammu and Kashmir, India
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Erickson ML, Brown CJ, Tomaszewski EJ, Ayotte JD, Böhlke JK, Kent DB, Qi S. Prioritizing water availability study settings to address geogenic contaminants and related societal factors. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:303. [PMID: 38400911 PMCID: PMC10894127 DOI: 10.1007/s10661-024-12362-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 01/15/2024] [Indexed: 02/26/2024]
Abstract
Water availability for human and ecological uses depends on both water quantity and water quality. The U.S. Geological Survey (USGS) is developing strategies for prioritizing regional-scale and watershed basin-scale studies of water availability across the nation. Previous USGS ranking processes for basin-scale studies incorporated primarily water quantity factors but are now considering additional water quality factors. This study presents a ranking based on the potential impacts of geogenic constituents on water quality and consideration of societal factors related to water quality. High-concentration geogenic constituents, including trace elements and radionuclides, are among the most prevalent contaminants limiting water availability in the USA and globally. Geogenic constituents commonly occur in groundwater because of subsurface water-rock interactions, and their distributions are controlled by complex geochemical processes. Geogenic constituent mobility can also be affected by human activities (e.g., mining, energy production, irrigation, and pumping). Societal factors and relations to drinking water sources and water quality information are often overlooked when evaluating research priorities. Sociodemographic characteristics, data gaps resulting from historical data-collection disparities, and infrastructure condition/age are examples of factors to consider regarding environmental justice. This paper presents approaches for ranking and prioritizing potential basin-scale study areas across the contiguous USA by considering a suite of conventional physical and geochemical variables related to geogenic constituents, with and without considering variables related to societal factors. Simultaneous consideration of societal and conventional factors could provide decision makers with more diverse, interdisciplinary tools to increase equity and reduce bias in prioritizing focused research areas and future water availability studies.
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Affiliation(s)
- Melinda L Erickson
- U.S. Geological Survey, 2280 Woodale Drive, Mounds View, MN, 55112, USA.
| | - Craig J Brown
- U.S. Geological Survey, 101 Pitkin Street, East Hartford, CT, 06108, USA
| | | | - Joseph D Ayotte
- U.S. Geological Survey, 331 Commerce Way, Pembroke, NH, 03275, USA
| | - John K Böhlke
- U.S. Geological Survey, 12201 Sunrise Valley Dr, Reston, VA, 20192, USA
| | - Douglas B Kent
- U.S. Geological Survey, 345 Middlefield Rd, Menlo Park, CA, 94025, USA
| | - Sharon Qi
- U.S. Geological Survey, 601 SW 2nd Ave. Suite 1950, Portland, OR, 97204, USA
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Farsad A, Marcos-Hernandez M, Sinha S, Westerhoff P. Sous Vide-Inspired Impregnation of Amorphous Titanium (Hydr)Oxide into Carbon Block Point-of-Use Filters for Arsenic Removal from Water. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:20410-20420. [PMID: 37948748 PMCID: PMC10810566 DOI: 10.1021/acs.est.3c06586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Carbon block filters, commonly employed as point-of-use (POU) water treatment components, effectively eliminate pathogens and adsorb undesirable tastes, odors, and organic contaminants, all while producing no water waste. However, they lack the capability to remove arsenic. Enabling the carbon block to remove arsenic could reduce its exposure risks in tap water. Inspired by Sous vide cooking techniques, we developed a low-energy, low-chemical method for impregnating commercially available carbon block with titanium (hydr)oxide (THO) in four integrated steps: (1) vacuum removal of air from the carbon block, (2) impregnation with precursors in a flexible pouch, (3) sealing to prevent oxygen intrusion, and (4) heating in a water bath at 80 °C for 20 h to eliminate exposure and reactions with air. This process achieved a uniform 13 wt % Ti loading in the carbon block. Our modified carbon block POU filter efficiently removed both arsenate and arsenite from tap water matrices containing 10 or 100 μg/L arsenic concentrations in batch experiments or continuous flow operations. Surprisingly, the THO-modified carbon block removed arsenite better than arsenate. This innovative method, using 70% fewer chemicals than traditional autoclave techniques, offers a cost-effective solution to reduce exposure to arsenic and lower its overall risk in tap water.
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Affiliation(s)
- Alireza Farsad
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287, USA
- Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), Arizona State University, Tempe, AZ 85287, USA
| | - Mariana Marcos-Hernandez
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287, USA
| | - Shahnawaz Sinha
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287, USA
- Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), Arizona State University, Tempe, AZ 85287, USA
| | - Paul Westerhoff
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287, USA
- Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), Arizona State University, Tempe, AZ 85287, USA
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5
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Hoyle-Gardner J, Badisa VLD, Sher S, Runwei L, Mwashote B, Ibeanusi V. Bacillus sp. strain MRS-1: A potential candidate for uranyl biosorption from uranyl polluted sites. Saudi J Biol Sci 2023; 30:103873. [PMID: 38073661 PMCID: PMC10709514 DOI: 10.1016/j.sjbs.2023.103873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 10/27/2023] [Accepted: 11/10/2023] [Indexed: 06/27/2024] Open
Abstract
The uranyl tolerance of a metal-resistant Bacillus sp. strain MRS-1, was determined in this current study. This was done due to a rise in anthropogenic activities, such as the production of uranium-based nuclear energy, which contributes to environmental degradation and poses risks to ecosystems and human health. The purpose of the research was to find effective strategies for uranium removal to minimize the contamination. In this paper, the biosorption of uranyl was investigated by batch tests. Bacteria could continue to multiply up to 350 ppm uranyl concentrations, however this growth was suppressed at 400 ppm, that generally accepted as the minimum concentration for bacterial growth inhibition. The optimal conditions for uranyl biosorption were pH 7, 20 °C, and a contact duration of 30 min with living bacteria. According to the findings of an investigation that used isotherm and kinetics models (Langmuir, Freundlich and pseudo second order), Bacillus sp. strain MRS-1 biosorption seemed to be dependent on monolayer adsorption as well as certain functional groups that had a strong affinity for uranyl confirmed by Fourier Transform Infrared Spectroscopy (FTIR) analysis. The shifts/sharping of peaks (1081-3304 cm-1) were prominent in treated samples compared to control one. These functional groups could be hydroxyl, amino, and carboxyl. Our findings showed that Bacillus sp. strain MRS-1 has an elevated uranyl biosorption ability, with 24.5 mg/g being achieved. This indicates its potential as a powerful biosorbent for dealing with uranium contamination in drinking water sources and represents a breakthrough in the cleanup of contaminated ecosystems.
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Affiliation(s)
- Jada Hoyle-Gardner
- Core Laboratory, School of the Environment, Florida A&M University, Tallahassee, FL, USA
- Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | | | - Shahid Sher
- Williams Lab, School of the Environment, Florida A&M University, Tallahassee, FL, USA
| | - Li Runwei
- Department of Civil Engineering, New Mexico State University, Las Cruces, NM, USA
| | - Benjamin Mwashote
- Core Laboratory, School of the Environment, Florida A&M University, Tallahassee, FL, USA
| | - Victor Ibeanusi
- Core Laboratory, School of the Environment, Florida A&M University, Tallahassee, FL, USA
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6
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Rani L, Srivastav AL, Kaushal J, Shukla DP, Pham TD, van Hullebusch ED. Significance of MOF adsorbents in uranium remediation from water. ENVIRONMENTAL RESEARCH 2023; 236:116795. [PMID: 37541412 DOI: 10.1016/j.envres.2023.116795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/21/2023] [Accepted: 07/28/2023] [Indexed: 08/06/2023]
Abstract
Uranium is considered as one of the most perilous radioactive contaminants in the aqueous environment. It has shown detrimental effects on both flora and fauna and because of its toxicities on human beings, therefore its exclusion from the aqueous environment is very essential. The utilization of metal-organic frameworks (MOFs) as an adsorbent for the removal of uranium from the aqueous environment could be a good approach. MOFs possess unique properties like high surface area, high porosity, adjustable pore size, etc. This makes them promising adsorbents for the removal of uranium from contaminated water. In this paper, sources of uranium in the water environment, human health disorders, and application of the different types of MOFs as well as the mechanisms of uranium removal have been discussed meticulously.
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Affiliation(s)
- Lata Rani
- Centre for Water Sciences, Chitkara University Institute of Engineering & Technology, Chitkara University, Punjab, India; Chitkara School of Pharmacy, Chitkara University, Himachal Pradesh, India
| | - Arun Lal Srivastav
- Chitkara University School of Engineering and Technology, Chitkara University, Himachal Pradesh, India.
| | - Jyotsna Kaushal
- Centre for Water Sciences, Chitkara University Institute of Engineering & Technology, Chitkara University, Punjab, India
| | - Dericks P Shukla
- Department of Civil Engineering, Indian Institute of Technology, Mandi, Himachal Pradesh, India
| | - Tien Duc Pham
- Faculty of Chemistry, University of Science, Vietnam National University, Hanoi-19 Le Thanh Tong, Hoan Kiem, Hanoi, 100000, Viet Nam
| | - Eric D van Hullebusch
- Université Paris Cité, Institut de physique du globe de Paris, CNRS, F-75005, Paris, France
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7
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Meza I, Jemison N, Gonzalez-Estrella J, Burns PC, Rodriguez V, Sigmon GE, Szymanowski JE, Ali AMS, Gagnon K, Cerrato JM, Lichtner P. Kinetics of Na- and K- uranyl arsenate dissolution. CHEMICAL GEOLOGY 2023; 636:121642. [PMID: 37601980 PMCID: PMC10434837 DOI: 10.1016/j.chemgeo.2023.121642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
We integrated aqueous chemistry analyses with geochemical modeling to determine the kinetics of the dissolution of Na and K uranyl arsenate solids (UAs(s)) at acidic pH. Improving our understanding of how UAs(s) dissolve is essential to predict transport of U and As, such as in acid mine drainage. At pH 2, Na0.48H0.52(UO2)(AsO4)(H2O)2.5(s) (NaUAs(s)) and K0.9H0.1(UO2)(AsO4)(H2O)2.5(s) (KUAs(s)) both dissolve with a rate constant of 3.2 × 10-7 mol m-2 s-1, which is faster than analogous uranyl phosphate solids. At pH 3, NaUAs(s) (6.3 × 10-8 mol m-2 s-1) and KUAs(s) (2.0 × 10-8 mol m-2 s-1) have smaller rate constants. Steady-state aqueous concentrations of U and As are similarly reached within the first several hours of reaction progress. This study provides dissolution rate constants for UAs(s), which may be integrated into reactive transport models for risk assessment and remediation of U and As contaminated waters.
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Affiliation(s)
- Isabel Meza
- Department of Civil, Construction & Environmental Engineering, MSC01 1070, University of New Mexico, Albuquerque, New Mexico 87131, USA
- Center for Water and the Environment, UNM, Albuquerque, NM, USA
| | - Noah Jemison
- Department of Civil, Construction & Environmental Engineering, MSC01 1070, University of New Mexico, Albuquerque, New Mexico 87131, USA
- Center for Water and the Environment, UNM, Albuquerque, NM, USA
| | - Jorge Gonzalez-Estrella
- School of Civil and Environmental Engineering, College of Engineering, Architecture, and Technology, Oklahoma State University, Stillwater, Oklahoma, USA
| | - Peter C. Burns
- Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, Notre Dame, Indiana 46556, USA and Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Virginia Rodriguez
- Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, Notre Dame, Indiana 46556, USA and Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Ginger E. Sigmon
- Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, Notre Dame, Indiana 46556, USA and Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Jennifer E.S. Szymanowski
- Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, Notre Dame, Indiana 46556, USA and Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Abdul-Mehdi S. Ali
- Department of Earth and Planetary Sciences, MSC03 2040, University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - Kaelin Gagnon
- Department of Civil, Construction & Environmental Engineering, MSC01 1070, University of New Mexico, Albuquerque, New Mexico 87131, USA
- Center for Water and the Environment, UNM, Albuquerque, NM, USA
| | - José M. Cerrato
- Department of Civil, Construction & Environmental Engineering, MSC01 1070, University of New Mexico, Albuquerque, New Mexico 87131, USA
- Center for Water and the Environment, UNM, Albuquerque, NM, USA
| | - Peter Lichtner
- Center for Water and the Environment, UNM, Albuquerque, NM, USA
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Zhang B, Zhang H, He J, Zhou S, Dong H, Rinklebe J, Ok YS. Vanadium in the Environment: Biogeochemistry and Bioremediation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:14770-14786. [PMID: 37695611 DOI: 10.1021/acs.est.3c04508] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Vanadium(V) is a highly toxic multivalent, redox-sensitive element. It is widely distributed in the environment and employed in various industrial applications. Interactions between V and (micro)organisms have recently garnered considerable attention. This Review discusses the biogeochemical cycling of V and its corresponding bioremediation strategies. Anthropogenic activities have resulted in elevated environmental V concentrations compared to natural emissions. The global distributions of V in the atmosphere, soils, water bodies, and sediments are outlined here, with notable prevalence in Europe. Soluble V(V) predominantly exists in the environment and exhibits high mobility and chemical reactivity. The transport of V within environmental media and across food chains is also discussed. Microbially mediated V transformation is evaluated to shed light on the primary mechanisms underlying microbial V(V) reduction, namely electron transfer and enzymatic catalysis. Additionally, this Review highlights bioremediation strategies by exploring their geochemical influences and technical implementation methods. The identified knowledge gaps include the particulate speciation of V and its associated environmental behaviors as well as the biogeochemical processes of V in marine environments. Finally, challenges for future research are reported, including the screening of V hyperaccumulators and V(V)-reducing microbes and field tests for bioremediation approaches.
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Affiliation(s)
- Baogang Zhang
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, China
| | - Han Zhang
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, China
| | - Jinxi He
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, China
| | - Shungui Zhou
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hailiang Dong
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences Beijing, Beijing 100083, China
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, Wuppertal 42285, Germany
| | - Yong Sik Ok
- Korea Biochar Research Center, APRU Sustainable Waste Management Program & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
- International ESG Association (IESGA), Seoul 02841, Republic of Korea
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9
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Goswami R, Bhagat C, Lollen I, Neog N, Barache UB, Thakur R, Mahlknecht J, Kumar M. Potential arsenic-chromium-lead Co-contamination in the hilly terrain of Arunachal Pradesh, north-eastern India: Genesis and health perspective. CHEMOSPHERE 2023; 323:138067. [PMID: 36812990 DOI: 10.1016/j.chemosphere.2023.138067] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 01/25/2023] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
In the recent times, multi-metal co-contamination in the groundwater of various parts of the globe has emerged as a challenging environmental health problems. While arsenic (As) has been reported with high fluoride and at times with uranium; and Cr & Pb are also found in aquifers under high anthropogenic impacts. The present work probably for the first time traces the As-Cr-Pb co-contamination in the pristine aquifers of a hilly terrain that are under relatively less stress from the anthropogenic activities. Based on the analyses of twenty-two (n = 22) groundwater (GW) samples and six (n = 6) sediment samples, it was found that Cr being leached from the natural sources as evident from 100% of samples with dissolve Cr exceeding the prescribed drinking water limit. Generic plots suggests rock-water interaction as the major hydrogeological processes with mixed Ca2+-Na+-HCO3- type water. Wide range of pH suggests localized human interferences, as well as indicative of both calcite and silicate weathering processes. In general water samples were found high only with Cr and Fe, however all sediment samples were found to contain As-Cr-Pb. This implies that the groundwater is under-risk of co-contamination of highly toxic trio of As-Cr-Pb. Multivariate analyses indicate that the changing pH as the causative factor for Cr leaching into the groundwater. This is a new finding for a pristine hilly aquifers, and we suspect such condition may also be present in other parts of globe, and thus precautionary investigations are needed to prevent this catastrophic situation to arise, and to alert the community in advance.
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Affiliation(s)
- Ritusmita Goswami
- Centre for Ecology, Environment and Sustainable Development, Tata Institute of Social Sciences, Guwahati- 781013, Assam, India.
| | - Chandrashekhar Bhagat
- Civil Engineering Discipline, Indian Institute of Technology Gandhinagar, Gujarat-382355, India; Sustainability Cluster, School of Engineering, University of Petroleum and Energy Studies, Dehradun-248007, Uttarakhand, India
| | - Igo Lollen
- Dept of Environmental Science, Royal Global University, Guwahati-781035, Assam, India
| | - Nikita Neog
- Centre for Ecology, Environment and Sustainable Development, Tata Institute of Social Sciences, Guwahati- 781013, Assam, India
| | - Umesh B Barache
- School of Chemical Sciences, Punyashlok Ahilyadevi Holkar Solapur University, Solapur 413255, Maharashtra, India
| | - Ritu Thakur
- North Eastern Regional Institute of Water and Land Management, Tezpur-784027, Assam, India
| | - Jurgen Mahlknecht
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterey, Monterrey 64849, Nuevo Leon, Mexico
| | - Manish Kumar
- Sustainability Cluster, School of Engineering, University of Petroleum and Energy Studies, Dehradun-248007, Uttarakhand, India; Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterey, Monterrey 64849, Nuevo Leon, Mexico.
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10
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Gardner CB, Wichterich C, Calero AE, Welch SA, Widom E, Smith DF, Carey AE, Lyons WB. Carbonate weathering, phosphate fertilizer, and hydrologic controls on dissolved uranium in rivers in the US Corn Belt: Disentangling seasonal geogenic- and fertilizer-derived sources. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 861:160455. [PMID: 36435237 DOI: 10.1016/j.scitotenv.2022.160455] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/15/2022] [Accepted: 11/20/2022] [Indexed: 06/16/2023]
Abstract
Soil and bedrock weathering and phosphate (P) fertilizers may both contribute to the uranium (U) load of rivers in agricultural regions, but controls over their relative influence are not well known. This study investigates the U sources to rivers in Ohio, United States, part of the Eastern Corn Belt in the Mississippi River watershed. We present a regional picture of seasonal U sources to rivers based on four analyses: 1) a spatial analysis of legacy soil and water data, 2) new measurements of U and carbonate weathering products from rivers at 50 locations across the state collected seasonally over two years, 3) a weekly time series with additional 234U/238U (n = 5) and 87Sr/86Sr (n = 5) measurements from an agricultural river, and 4) a mass-balance approach to U addition to the landscape based on reported P fertilizer use. Uranium concentrations in surface waters collected statewide ranged 0.1-21 nM (n = 132), with significantly higher concentrations in the glaciated agricultural portion of the state (mean = 7.3 nM; n = 105) than the non-glaciated portion (mean = 2.0 nM; n = 24). Concentrations in the glaciated region were highest during the spring and summer and decreased during baseflow. In the time-series, concentrations were ~7 nM during baseflow and ~14 nM during intermediate seasonal discharge conditions, indicating a second more surficial endmember source of U in addition to bedrock weathering that is well correlated with other carbonate weathering products. Systematic increases in 87Sr/86Sr and decreases in 234U/238U with increasing discharge confirm a changing source of carbonate and U weathering and a third surficial endmember during high discharge events. Our mass balance approach and geochemical analysis suggest that elevated U concentrations are the result of carbonate weathering deep in the soil column during elevated seasonal flow. Further work on U dynamics in agricultural rivers is required to understand mechanism controlling seasonal changes in U concentrations and 234U/238U in downstream rivers and U flux.
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Affiliation(s)
- Christopher B Gardner
- School of Earth Sciences, The Ohio State University, 125 S Oval Mall, Columbus, OH 43210, USA; Byrd Polar and Climate Research Center, The Ohio State University, 1090 Carmack Rd, Columbus, OH, USA.
| | - Connor Wichterich
- School of Earth Sciences, The Ohio State University, 125 S Oval Mall, Columbus, OH 43210, USA
| | - Adolfo E Calero
- School of Earth Sciences, The Ohio State University, 125 S Oval Mall, Columbus, OH 43210, USA
| | - Susan A Welch
- School of Earth Sciences, The Ohio State University, 125 S Oval Mall, Columbus, OH 43210, USA; Byrd Polar and Climate Research Center, The Ohio State University, 1090 Carmack Rd, Columbus, OH, USA
| | - Elisabeth Widom
- Department of Geology and Environmental Earth Science, Miami University, 118 Shideler Hall, 250 S. Patterson Ave, Oxford, OH 45056, USA
| | - Devin F Smith
- School of Earth Sciences, The Ohio State University, 125 S Oval Mall, Columbus, OH 43210, USA
| | - Anne E Carey
- School of Earth Sciences, The Ohio State University, 125 S Oval Mall, Columbus, OH 43210, USA; Byrd Polar and Climate Research Center, The Ohio State University, 1090 Carmack Rd, Columbus, OH, USA
| | - W Berry Lyons
- School of Earth Sciences, The Ohio State University, 125 S Oval Mall, Columbus, OH 43210, USA; Byrd Polar and Climate Research Center, The Ohio State University, 1090 Carmack Rd, Columbus, OH, USA
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11
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Peng D, Zhang R, Chen Y, Jiang L, Lei L, Xu H, Feng S. Effects of secondary release of chromium and vanadium on soil properties, nutrient cycling and bacterial communities in contaminated acidic paddy soil. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 326:116725. [PMID: 36375431 DOI: 10.1016/j.jenvman.2022.116725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/27/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
Although the contamination situation of chromium (Cr) and vanadium (V) have been revealed, the effects of their re-release on ecological risk in contaminated acidic paddy soil are unclear. To evaluate the effects, we assigned soil microcosms across three different concentration (100, 200, 300 mg/L) and introduced Cr and V alone or combination into an already slightly contaminated acidic soil. We found that Cr and V alone or interacted to increased soil bioavailable-metals, changed soil properties and nutrients to varying degrees. Meanwhile, soil ammoniacal nitrogen (NH4+-N) and nitrate nitrogen (NO3--N) contents, nitrogen (N) -cycling enzyme activities, microbial mass N were significantly influenced by Cr addition. Which demonstrated that Cr re-release may disturb soil N cycle. However, V alone significantly improved soil NO3--N contents, cellulase and dehydrogenase activities, soil respiration intensity and microbial mass carbon: nitrogen. Meanwhile, V addition also decreased bacterial diversity while Cr addition increased bacterial diversity and shaped new bacterial community, some V(V) and Cr (VI) reducing bacteria were identified. Heatmap of Pearson correlation and Redundancy analysis showed that NH4+-N, NO3--N, Potassium, Phosphorus, and Cr played an important role in bacterial community structure. These findings suggested that re-release of Cr and V disturbed soil function and raised ecological risks, and the power to destroy the ecosystem stability originated from Cr was much stronger than V. This study was contributed to understand the effects of Cr and V re-release on microecology in contaminated acidic agricultural soil.
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Affiliation(s)
- Dinghua Peng
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, PR China
| | - Renfeng Zhang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, PR China
| | - Yahui Chen
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, PR China
| | - Lili Jiang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, PR China
| | - Ling Lei
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, PR China
| | - Heng Xu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, PR China; Key Laboratory of Environment Protection, Soil Ecological Protection and Pollution Control, Sichuan University & Department of Ecology and Environment of Sichuan, Chengdu, 610065, Sichuan, PR China.
| | - Su Feng
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, PR China.
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12
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Meza I, Gonzalez-Estrella J, Burns PC, Rodriguez V, Velasco CA, Sigmon GE, Szymanowski JES, Forbes TZ, Applegate LM, Ali AMS, Lichtner P, Cerrato JM. Solubility and Thermodynamic Investigation of Meta-Autunite Group Uranyl Arsenate Solids with Monovalent Cations Na and K. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:255-265. [PMID: 36525634 PMCID: PMC10039619 DOI: 10.1021/acs.est.2c06648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
We investigated the aqueous solubility and thermodynamic properties of two meta-autunite group uranyl arsenate solids (UAs). The measured solubility products (log Ksp) obtained in dissolution and precipitation experiments at equilibrium pH 2 and 3 for NaUAs and KUAs ranged from -23.50 to -22.96 and -23.87 to -23.38, respectively. The secondary phases (UO2)(H2AsO4)2(H2O)(s) and trögerite, (UO2)3(AsO4)2·12H2O(s), were identified by powder X-ray diffraction in the reacted solids of KUA precipitation experiments (pH 2) and NaUAs dissolution and precipitation experiments (pH 3), respectively. The identification of these secondary phases in reacted solids suggest that H3O+ co-occurring with Na or K in the interlayer region can influence the solubilities of uranyl arsenate solids. The standard-state enthalpy of formation from the elements (ΔHf-el) of NaUAs is -3025 ± 22 kJ mol-1 and for KUAs is -3000 ± 28 kJ mol-1 derived from measurements by drop solution calorimetry, consistent with values reported in other studies for uranyl phosphate solids. This work provides novel thermodynamic information for reactive transport models to interpret and predict the influence of uranyl arsenate solids on soluble concentrations of U and As in contaminated waters affected by mining legacy and other anthropogenic activities.
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Affiliation(s)
- Isabel Meza
- Department of Civil, Construction & Environmental Engineering, MSC01 1070, University of New Mexico, Albuquerque, New Mexico87131, United States
- Center for Water and the Environment, UNM, Albuquerque, New Mexico87131, United States
| | - Jorge Gonzalez-Estrella
- School of Civil and Environmental Engineering, College of Engineering, Architecture, and Technology, Oklahoma State University, Stillwater, Oklahoma74078, United States
| | - Peter C Burns
- Department of Civil and Environmental Engineering and Earth Sciences and Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana46556, United States
| | - Virginia Rodriguez
- Department of Civil and Environmental Engineering and Earth Sciences and Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana46556, United States
| | - Carmen A Velasco
- Department of Civil, Construction & Environmental Engineering, MSC01 1070, University of New Mexico, Albuquerque, New Mexico87131, United States
- Center for Water and the Environment, UNM, Albuquerque, New Mexico87131, United States
| | - Ginger E Sigmon
- Department of Civil and Environmental Engineering and Earth Sciences and Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana46556, United States
| | - Jennifer E S Szymanowski
- Department of Civil and Environmental Engineering and Earth Sciences and Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana46556, United States
| | - Tori Z Forbes
- Department of Chemistry, University of Iowa, Iowa City, Iowa52242, United States
| | - Lindsey M Applegate
- Department of Chemistry, University of Iowa, Iowa City, Iowa52242, United States
| | - Abdul-Mehdi S Ali
- Department of Earth and Planetary Sciences, MSC03 2040, University of New Mexico, Albuquerque, New Mexico87131, United States
| | - Peter Lichtner
- Center for Water and the Environment, UNM, Albuquerque, New Mexico87131, United States
| | - José M Cerrato
- Department of Civil, Construction & Environmental Engineering, MSC01 1070, University of New Mexico, Albuquerque, New Mexico87131, United States
- Center for Water and the Environment, UNM, Albuquerque, New Mexico87131, United States
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13
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Chen J, Cheng X, Sheng G. Graphene oxide enhanced the reductive sequestration of UO22+, ReO4−, SeO42− and SeO32− by zero-valent iron: batch, column and mechanism investigations. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08725-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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14
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He Z, Dong L, Zhu P, Zhang Z, Xu T, Zhang D, Pan X. Nano-scale analysis of uranium release behavior from river sediment in the Ili basin. WATER RESEARCH 2022; 227:119321. [PMID: 36368086 DOI: 10.1016/j.watres.2022.119321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/30/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
Due to the limitations of the conventional water sample pretreatment methods, some of the colloidal uranium (U) has long been misidentified as "dissolved" phase. In this work, the U species in river water in the Ili Basin was classified into submicron-colloidal (0.1-1 μm), nano-colloidal (0.1 μm-3 kDa) and dissolved phases (< 3 kDa) by using high-speed centrifugation and ultrafiltration. The U concentration in the river water was 5.39-8.75 μg/L, which was dominated by nano-colloidal phase (55-70%). The nano-colloidal particles were mainly composed of particulate organic matter (POM) and had a very high adsorption capacity for U (accounting for 70 ± 23% of colloidal U). Sediment disturbance, low temperature, and high inorganic carbon greatly improved the release of nano-colloidal U, but high levels of Ca2+ inhibited it. The simulated river experiments indicated that the flow regime determined the release of nano-colloidal U, and large amounts of nano-colloidal U might be released during spring floods in the Ili basin. Moreover, global warming increases river flow and inorganic carbon content, which may greatly promote the release and migration of nano-colloidal U.
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Affiliation(s)
- Zhanfei He
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Lingfeng Dong
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Pengfeng Zhu
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Zhibing Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Tao Xu
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Daoyong Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China; Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China.
| | - Xiangliang Pan
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China; Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
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15
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Peel HR, Balogun FO, Bowers CA, Miller CT, Obeidy CS, Polizzotto ML, Tashnia SU, Vinson DS, Duckworth OW. Towards Understanding Factors Affecting Arsenic, Chromium, and Vanadium Mobility in the Subsurface. WATER 2022; 14:3687. [PMID: 36420182 PMCID: PMC9681123 DOI: 10.3390/w14223687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Arsenic (As), chromium (Cr), and vanadium (V) are naturally occurring, redox-active elements that can become human health hazards when they are released from aquifer substrates into groundwater that may be used as domestic or irrigation source. As such, there is a need to develop incisive conceptual and quantitative models of the geochemistry and transport of potentially hazardous elements to assess risk and facilitate interventions. However, understanding the complexity and heterogeneous subsurface environment requires knowledge of solid-phase minerals, hydrologic movement, aerobic and anaerobic environments, microbial interactions, and complicated chemical kinetics. Here, we examine the relevant geochemical and hydrological information about the release and transport of potentially hazardous geogenic contaminants, specifically As, Cr, and V, as well as the potential challenges in developing a robust understanding of their behavior in the subsurface. We explore the development of geochemical models, illustrate how they can be utilized, and describe the gaps in knowledge that exist in translating subsurface conditions into numerical models, as well as provide an outlook on future research needs and developments.
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Affiliation(s)
- Hannah R. Peel
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC 27695, USA
| | - Fatai O. Balogun
- Department of Earth Sciences, University of Oregon, Eugene, OR 97403, USA
| | - Christopher A. Bowers
- Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Cass T. Miller
- Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Chelsea S. Obeidy
- Department of Earth Sciences, University of Oregon, Eugene, OR 97403, USA
| | | | - Sadeya U. Tashnia
- Department of Geography and Earth Sciences, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - David S. Vinson
- Department of Geography and Earth Sciences, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Owen W. Duckworth
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC 27695, USA
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16
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Ayub A, Srithilat K, Fatima I, Panduro-Tenazoa NM, Ahmed I, Akhtar MU, Shabbir W, Ahmad K, Muhammad A. Arsenic in drinking water: overview of removal strategies and role of chitosan biosorbent for its remediation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:64312-64344. [PMID: 35849228 DOI: 10.1007/s11356-022-21988-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 07/08/2022] [Indexed: 06/15/2023]
Abstract
Accessibility to clean drinking water often remains a crucial task at times. Among other water pollutants, arsenic is considered a more lethal contaminant and has become a serious threat to human life globally. This review discussed the sources, chemistry, distribution, and toxicity of arsenic and various conventional technologies that are in option for its removal from the water system. Nowadays, biosorbents are considered the best option for arsenic-contaminated water treatment. We have mainly focused on the need and potential of biosorbents especially the role of chitosan-based composites for arsenic removal. The chitosan-based sorbents are economically more efficient in terms of their, low toxicity, cost-effectiveness, biodegradability, eco-friendly nature, and reusability. The role of various modification techniques, such as physical and chemical, has also been evaluated to improve the physicochemical properties of biosorbent. The importance of adsorption kinetic and isotherm models and the role of solution pH and pHPZC for arsenic uptake from the polluted water have also been investigated. Some other potential applications of chitosan-based biosorbents have also been discussed along with its sustainability aspect. Finally, some suggestions have been highlighted for further improvements in this field.
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Affiliation(s)
- Asif Ayub
- Institute of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan.
| | - Khaysy Srithilat
- Faculty of Economics and Business Management, National University of Laos, Vientiane, Laos
| | - Irum Fatima
- Department of Chemistry, University of Wah, Quaid Avenue, Wah Cantt, Rawalpindi, 47040, Pakistan
| | - Nadia Masaya Panduro-Tenazoa
- Department of Aquaculture Agroforestry Engineering, National Intercultural University of the Amazon, Pucallpa, Peru
| | - Iqbal Ahmed
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Muhammad Usman Akhtar
- National Institute of Food Science and Technology, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Waqas Shabbir
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Khalil Ahmad
- Institute of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Ali Muhammad
- Institute of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
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17
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Kumar V, Setia R, Pandita S, Singh S, Mitran T. Assessment of U and As in groundwater of India: A meta-analysis. CHEMOSPHERE 2022; 303:135199. [PMID: 35667513 DOI: 10.1016/j.chemosphere.2022.135199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/23/2022] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Abstract
More than 2.5 billion people depend upon groundwater worldwide for drinking, and giving quality water has become one of the great apprehensions of human culture. The contamination of Uranium (U) and Arsenic (As) in the groundwater of India is gaining global attention. The current review provides state-of-the-art groundwater contamination with U and As in different zones of India based on geology and soil texture. The average concentration of U in different zones of India was in the order: West Zone (41.07 μg/L) > North Zone (37.7 μg/L) > South Zone (13.5 μg/L)> Central Zone (7.4 μg/L) > East Zone (5.7 μg/L) >Southeast Zone (2.4 μg/L). The average concentration of As in groundwater of India is in the order: South Zone (369.7 μg/L)>Central Zone (260.4 μg/L)>North Zone (67.7 μg/L)>East Zone (60.3 μg/L)>North-east zone (9.78 μg/L)>West zone (4.14 μg/L). The highest concentration of U and As were found in quaternary sediments, but U in clay skeletal and As in loamy skeletal. Results of health risk assessment showed that the average health quotient of U in groundwater for children and adults was less than unity. In contrast, it was greater than unity for As posing a harmful impact on human health. This review provides the baseline data regarding the U and As contamination status in groundwater of India, and appropriate, effective control measures need to be taken to control this problem.
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Affiliation(s)
- Vinod Kumar
- Department of Botany, Government Degree College, Ramban, Jammu, India.
| | - Raj Setia
- Punjab Remote Sensing Centre, Ludhiana, India
| | - Shevita Pandita
- Department of Botany, University of Jammu, Jammu, Jammu and Kashmir, India
| | - Sumit Singh
- Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Tarik Mitran
- Soils & Land Resources Assessment Division, National Remote Sensing Centre, Balanagar, Hyderabad, 500 037, India
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18
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Dong Y, Kong X, Luo X, Wang H. Adsorptive removal of heavy metal anions from water by layered double hydroxide: A review. CHEMOSPHERE 2022; 303:134685. [PMID: 35472618 DOI: 10.1016/j.chemosphere.2022.134685] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/17/2022] [Accepted: 04/20/2022] [Indexed: 05/07/2023]
Abstract
High-valence heavy metals with high ecotoxicity are generally found in water in the form of anions, and this increases heavy metal pollution intensity and treatment difficulty. Recent studies have pointed to the potential efficiency of layered double hydroxides (LDHs) to meet this challenge. In this review, we retrospectively research the development of LDHs using a Java application called CiteSpace. We describe the unique layer structure, highly adjustable chemical properties, and diverse synthesis methods of LDHs, all of which decide the effective adsorption of heavy metal anions by LDHs. Subsequently, we focus on discussing the adsorption mechanism of LDHs on heavy metal anions, as well as the current state of research and future directions for microscopic interaction mechanisms. For practical applications, it is critical to improve the adsorption selectivity and stability. We then recommend solutions to improve the adsorption selectivity and stability after identifying the influencing mechanism. Finally, we provide our perspectives on the future development of LDHs adsorption of heavy metal anions.
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Affiliation(s)
- Yuecen Dong
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Xiangrui Kong
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Xingshen Luo
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Hongtao Wang
- School of Environment, Tsinghua University, Beijing, 100084, China.
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19
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Parnell J. Vanadium for Green Energy: Increasing Demand but With Health Implications in Volcanic Terrains. GEOHEALTH 2022; 6:e2021GH000579. [PMID: 35799914 PMCID: PMC9250111 DOI: 10.1029/2021gh000579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 05/31/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
The transition to a clean energy future may require a very substantial increase in resources of vanadium. This trend brings into focus the potential health issues related to vanadium in the environment. Most vanadium enters the Earth's crust through volcanic rocks; hence, vanadium levels in groundwaters in volcanic aquifers are higher than in other aquifers and can exceed local guidance limits. The biggest accumulation of volcanogenic sediment on the planet is downwind of the Andes and makes up much of Argentina. Consequently, groundwaters in Argentina have the highest vanadium contents and constitute a global vanadium anomaly. The high vanadium contents have given rise to health concerns. Vanadium could be extracted during remediation of domestic and other groundwater, and although the resultant resource is limited, it would be gained using low-energy technology.
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Affiliation(s)
- John Parnell
- School of GeosciencesUniversity of AberdeenAberdeenUK
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20
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Vengosh A, Coyte RM, Podgorski J, Johnson TM. A critical review on the occurrence and distribution of the uranium- and thorium-decay nuclides and their effect on the quality of groundwater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 808:151914. [PMID: 34856287 DOI: 10.1016/j.scitotenv.2021.151914] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 10/22/2021] [Accepted: 11/19/2021] [Indexed: 06/13/2023]
Abstract
This critical review presents the key factors that control the occurrence of natural elements from the uranium- and thorium-decay series, also known as naturally occurring radioactive materials (NORM), including uranium, radium, radon, lead, polonium, and their isotopes in groundwater resources. Given their toxicity and radiation, elevated levels of these nuclides in drinking water pose human health risks, and therefore understanding the occurrence, sources, and factors that control the mobilization of these nuclides from aquifer rocks is critical for better groundwater management and human health protection. The concentrations of these nuclides in groundwater are a function of the groundwater residence time relative to the decay rates of the nuclides, as well as the net balance between nuclides mobilization (dissolution, desorption, recoil) and retention (adsorption, precipitation). This paper explores the factors that control this balance, including the relationships between the elemental chemistry (e.g., solubility and speciation), lithological and hydrogeological factors, groundwater geochemistry (e.g., redox state, pH, ionic strength, ion-pairs availability), and their combined effects and interactions. The various chemical properties of each of the nuclides results in different likelihoods for co-occurrence. For example, the primordial 238U, 222Rn, and, in cases of high colloid concentrations also 210Po, are all more likely to be found in oxic groundwater. In contrast, in reducing aquifers, Ra nuclides, 210Pb, and in absence of high colloid concentrations, 210Po, are more mobile and frequently occur in groundwater. In highly permeable sandstone aquifers that lack sufficient adsorption sites, Ra is often enriched, even in low salinity and oxic groundwater. This paper also highlights the isotope distributions, including those of relatively long-lived nuclides (238U/235U) with abundances that depend on geochemical conditions (e.g., fractionation induced from redox processes), as well as shorter-lived nuclides (234U/238U, 228Ra/226Ra, 224Ra/228Ra, 210Pb/222Rn, 210Po/210Pb) that are strongly influenced by physical (recoil), lithological, and geochemical factors. Special attention is paid in evaluating the ability to use these isotope variations to elucidate the sources of these nuclides in groundwater, mechanisms of their mobilization from the rock matrix (e.g., recoil, ion-exchange), and retention into secondary mineral phases and ion-exchange sites.
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Affiliation(s)
| | | | - Joel Podgorski
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
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21
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Tomašek I, Mouri H, Dille A, Bennett G, Bhattacharya P, Brion N, Elskens M, Fontijn K, Gao Y, Gevera PK, Ijumulana J, Kisaka M, Leermakers M, Shemsanga C, Walraevens K, Wragg J, Kervyn M. Naturally occurring potentially toxic elements in groundwater from the volcanic landscape around Mount Meru, Arusha, Tanzania and their potential health hazard. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 807:150487. [PMID: 34600984 DOI: 10.1016/j.scitotenv.2021.150487] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 08/26/2021] [Accepted: 09/16/2021] [Indexed: 06/13/2023]
Abstract
The population of the semi-arid areas of the countries in the East African Rift Valley (EARV) is faced with serious problems associated with the availability and the quality of the drinking water. In these areas, the drinking water supply largely relies on groundwater characterised by elevated fluoride concentration (> 1.5 mg/L), resulting from interactions with the surrounding alkaline volcanic rocks. This geochemical anomaly is often associated with the presence of other naturally occurring potentially toxic elements (PTEs), such as As, Mo, U, V, which are known to cause adverse effects on human health. This study reports on the occurrence of such PTEs in the groundwater on the populated flanks of Mt. Meru, an active volcano situated in the EARV. Our results show that the majority of analysed PTEs (Al, As, Ba, Cd, Cr, Cu, Fe, Mn, Ni, Se, Sr, Pb, and Zn) are within the acceptable limits for drinking purpose in samples collected from wells, springs and tap systems, suggesting that there is no immediate health risk associated with these PTEs. However, some of the samples were found to exceed the WHO tolerance limit for U (> 30 μg/L) and Mo (> 70 μg/L). The sample analysis also revealed that in some of the collected samples, the concentrations of total dissolved solids, Na+ and K+ exceed the permissible limits. The concerning levels of major parameters and PTEs were found to be associated with areas covered with debris avalanche deposits on the northeast flank, and volcanic ash and alluvial deposits on the southwest flanks of the volcano. The study highlights the need to extend the range of elements monitored in the regional groundwater and make a more routine measurement of PTEs to ensure drinking water safety and effective water management measures.
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Affiliation(s)
- Ines Tomašek
- Analytical, Environmental and Geochemistry (AMGC) group, Department of Chemistry, Vrije Universiteit Brussel, Belgium; Physical Geography (FARD) group, Department of Geography, Vrije Universiteit Brussel, Belgium.
| | - Hassina Mouri
- Department of Geology, University of Johannesburg, South Africa
| | - Antoine Dille
- Physical Geography (FARD) group, Department of Geography, Vrije Universiteit Brussel, Belgium; Department of Earth Sciences, Royal Museum for Central Africa, Tervuren, Belgium
| | - George Bennett
- Laboratory for Applied Geology and Hydrogeology, Department of Geology, Ghent University, Belgium; Department of Mining and Mineral Processing Engineering, University of Dodoma, Tanzania
| | - Prosun Bhattacharya
- KTH-International Groundwater Arsenic Research Group, Department of Sustainable Development, Environmental Science and Engineering, KTH Royal Institute of Technology, Sweden
| | - Natacha Brion
- Analytical, Environmental and Geochemistry (AMGC) group, Department of Chemistry, Vrije Universiteit Brussel, Belgium
| | - Marc Elskens
- Analytical, Environmental and Geochemistry (AMGC) group, Department of Chemistry, Vrije Universiteit Brussel, Belgium
| | - Karen Fontijn
- Laboratoire G-Time, Department of Geosciences, Environment and Society, Université libre de Bruxelles, Belgium
| | - Yue Gao
- Analytical, Environmental and Geochemistry (AMGC) group, Department of Chemistry, Vrije Universiteit Brussel, Belgium
| | | | - Julian Ijumulana
- KTH-International Groundwater Arsenic Research Group, Department of Sustainable Development, Environmental Science and Engineering, KTH Royal Institute of Technology, Sweden; DAFWAT Research Group, Department of Water Resources Engineering, College of Engineering and Technology, University of Dar es Salaam, Tanzania
| | - Mary Kisaka
- Physical Geography (FARD) group, Department of Geography, Vrije Universiteit Brussel, Belgium; Department of Geology, University of Dodoma, Tanzania
| | - Martine Leermakers
- Analytical, Environmental and Geochemistry (AMGC) group, Department of Chemistry, Vrije Universiteit Brussel, Belgium
| | | | - Kristine Walraevens
- Laboratory for Applied Geology and Hydrogeology, Department of Geology, Ghent University, Belgium
| | - Joanna Wragg
- British Geological Survey, Environmental Science Centre, Nottingham, United Kingdom
| | - Matthieu Kervyn
- Physical Geography (FARD) group, Department of Geography, Vrije Universiteit Brussel, Belgium
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22
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Escobedo E, Cho K, Chang YS. Electrochemical activation of hydrogen peroxide, persulfate, and free chlorine using sacrificial iron anodes for decentralized wastewater treatment. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127068. [PMID: 34523470 DOI: 10.1016/j.jhazmat.2021.127068] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 08/26/2021] [Accepted: 08/26/2021] [Indexed: 06/13/2023]
Abstract
Increasing contamination of groundwater by heavy metals could potentially hamper the basic sanitation based on septic system in developing countries. Therefore, this paper evaluated wastewater treatment by electrochemical activation of hydrogen peroxide (EAHP), persulfate (EAP), and free chlorine (EAFC) to simultaneously eliminate aqueous organic matter and heavy metals. Sacrificial iron anodes under galvanostatic regime activated the batch-injected oxidants under uncontrolled pH, to avoid extra cost of control in decentralized processes (e.g., household use) to treat domestic wastewater. Response surface methodology (RSM) was used to determine the optimized conditions for EAP ([persulfate]0 = 25 mM, 24.4 mA/cm2), EAFC ([free chlorine]0 = 35.5 mM, 44.4 mA/cm2), and EAHP ([H2O2]0 = 91.1 mM, 45 mA/cm2) towards total organic carbon (TOC) removal. Treatment of real wastewater under optimum conditions significantly reduced chemical oxygen demand (COD) and TOC in all treatments, complying with lenient effluent standards as well as the added benefit of complete As(V) and Cr(VI) removal. Although EAP and EAFC provided superior removal of TOC (70-75%) and COD (73-100%) within 3 h, respectively, effluent toxicity and operation cost (76-85 USD/m3) were relatively high. EAHP was the best available option to secure non-toxic effluent with the least cost (63 USD/m3).
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Affiliation(s)
- Ericson Escobedo
- Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Kangwoo Cho
- Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea; Institute for Convergence Research and Education in Advanced Technology, Yonsei University International Campus, 21983 Incheon, Republic of Korea.
| | - Yoon-Seok Chang
- Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea.
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23
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Guo SS, Tian YQ, Wu H, Jin XD, Gan LZ, Li Y, Yang JY. Spatial distribution and morphological transformation of chromium with coexisting substances in tannery landfill. CHEMOSPHERE 2021; 285:131503. [PMID: 34265720 DOI: 10.1016/j.chemosphere.2021.131503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/24/2021] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Abstract
The prosperity and development of tannery industry have brought about rapid economic growth. However, the tannery landfill without anti-seepage measures in the early stage has generated masses of environmental hazards owing to the lack of awareness in environmental protection. Therefore, it is imperative to pay much attention to the understanding of environmental hazards from tannery waste. In this study, solid samples and groundwater samples were collected from a tannery landfill to study the effect of the characteristic pollutants produced by tanning on chromium distribution with other coexisting substances. The results showed that significant correlations were demonstrated between multiple coexisting substances (total organic carbon, total petroleum hydrocarbons, total nitrogen, Cr, F, Ca, Cu and Pb), indicating the possible same source or they coming from the same tannery production stage. The weights of positive effects and negative effects of coexisting substances on total Cr distribution in the profile decreased in the order: total nitrogen > Cu > Ca > Pb > total organic carbon > F > SO42-> Cd, and Ni > Cl > Hg, respectively. Moreover, the simulation of Visual MINTEQ showed that the cations were mainly bound to Cr as CrO42-, while the anions were bound to Cr3+. This study provided a new perspective on the selection of remediation strategies for Cr-contaminated sites to avoid secondary environmental pollution caused by the release of coexisting heavy metals.
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Affiliation(s)
- Shan-Shan Guo
- College of Architecture and Environment, Sichuan University, Chengdu, 610065, China
| | - Yong-Qiang Tian
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Hao Wu
- Scientific Research Academy of Guangxi Environmental Protection, Nanning, 530022, China
| | - Xiao-Dan Jin
- Scientific Research Academy of Guangxi Environmental Protection, Nanning, 530022, China
| | - Long-Zhan Gan
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Yang Li
- Scientific Research Academy of Guangxi Environmental Protection, Nanning, 530022, China
| | - Jin-Yan Yang
- College of Architecture and Environment, Sichuan University, Chengdu, 610065, China.
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24
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Erickson ML, Elliott SM, Brown CJ, Stackelberg PE, Ransom KM, Reddy JE, Cravotta CA. Machine-Learning Predictions of High Arsenic and High Manganese at Drinking Water Depths of the Glacial Aquifer System, Northern Continental United States. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:5791-5805. [PMID: 33822585 DOI: 10.1021/acs.est.0c06740] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Globally, over 200 million people are chronically exposed to arsenic (As) and/or manganese (Mn) from drinking water. We used machine-learning (ML) boosted regression tree (BRT) models to predict high As (>10 μg/L) and Mn (>300 μg/L) in groundwater from the glacial aquifer system (GLAC), which spans 25 states in the northern United States and provides drinking water to 30 million people. Our BRT models' predictor variables (PVs) included recently developed three-dimensional estimates of a suite of groundwater age metrics, redox condition, and pH. We also demonstrated a successful approach to significantly improve ML prediction sensitivity for imbalanced data sets (small percentage of high values). We present predictions of the probability of high As and high Mn concentrations in groundwater, and uncertainty, at two nonuniform depth surfaces that represent moving median depths of GLAC domestic and public supply wells within the three-dimensional model domain. Predicted high likelihood of anoxic condition (high iron or low dissolved oxygen), predicted pH, relative well depth, several modeled groundwater age metrics, and hydrologic position were all PVs retained in both models; however, PV importance and influence differed between the models. High-As and high-Mn groundwater was predicted with high likelihood over large portions of the central part of the GLAC.
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Affiliation(s)
- Melinda L Erickson
- U.S. Geological Survey, 2280 Woodale Drive, Mounds View, Minnesota 55112, United States
| | - Sarah M Elliott
- U.S. Geological Survey, 2280 Woodale Drive, Mounds View, Minnesota 55112, United States
| | - Craig J Brown
- U.S. Geological Survey, 101 Pitkin Street, East Hartford, Connecticut 06108, United States
| | - Paul E Stackelberg
- U.S. Geological Survey, 425 Jordan Road, Troy, New York 12180, United States
| | - Katherine M Ransom
- U.S. Geological Survey, 6000 J Street, Sacramento, California 95819, United States
| | - James E Reddy
- U.S. Geological Survey, 30 Brown Road, Ithaca, New York 14850, United States
| | - Charles A Cravotta
- U.S. Geological Survey, 215 Limekiln Road, New Cumberland, Pennsylvania 17070, United States
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25
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Xu T, Jiang X, Tang Y, Zeng Y, Zhang W, Shi B. Oxidation of trivalent chromium induced by unsaturated oils: A pathway for hexavalent chromium formation in soil. JOURNAL OF HAZARDOUS MATERIALS 2021; 405:124699. [PMID: 33301971 DOI: 10.1016/j.jhazmat.2020.124699] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 11/13/2020] [Accepted: 11/25/2020] [Indexed: 05/12/2023]
Abstract
The kinetics and mechanisms of the oxidation of Cr(III) in soil contaminated by unsaturated oils were investigated. Batch experiments were performed with unsaturated oils, namely, fish oil, hydrogenated lard oil, rapeseed oil, and caster oil. Impacts of environmental parameters, including temperature, soil pH, UV irradiation, oil content, and soil moisture content were examined. Results showed that oxidation of Cr(III) in oil-treated soils was accompanied by the formation of Cr(VI), which first increased and then decreased. Changes in the peroxide values of oils and the production of hexanal in the soil indicated that hydroperoxide was closely related to the formation of Cr(VI). tert-Butylhydroperoxide, as a model molecule of hydroperoxide, significantly enhanced the oxidation of Cr(III) in water. This result further showed that hydroperoxides were responsible for the oxidation of Cr(III). Native soil substances, such as organic matter, Fe(II), and microbes, and the decomposition products of hydroperoxides, such as aldehydes, could reduce Cr(VI). The change in Cr(VI) content in the soil resulted from the competition between the oxidation of Cr(III) and the reduction of Cr(VI). High temperature, high soil pH, UV irradiation, and low soil moisture content could facilitate the oxidation of Cr(III), which is of environmental significance.
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Affiliation(s)
- Teng Xu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Xiaofeng Jiang
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Yuling Tang
- National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, China
| | - Yunhang Zeng
- National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, China
| | - Wenhua Zhang
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China; National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, China.
| | - Bi Shi
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China
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26
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Ma M, Wang R, Xu L, Xu M, Liu S. Emerging health risks and underlying toxicological mechanisms of uranium contamination: Lessons from the past two decades. ENVIRONMENT INTERNATIONAL 2020; 145:106107. [PMID: 32932066 DOI: 10.1016/j.envint.2020.106107] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 08/28/2020] [Accepted: 08/30/2020] [Indexed: 06/11/2023]
Abstract
Uranium contamination is a global health concern. Regarding natural or anthropogenic uranium contamination, the major sources of concern are groundwater, mining, phosphate fertilizers, nuclear facilities, and military activities. Many epidemiological and laboratory studies have demonstrated that environmental and occupational uranium exposure can induce multifarious health problems. Uranium exposure may cause health risks because of its chemotoxicity and radiotoxicity in natural or anthropogenic scenarios: the former is generally thought to play a more significant role with regard to the natural uranium exposure, and the latter is more relevant to enriched uranium exposure. The understanding of the health risks and underlying toxicological mechanisms of uranium remains at a preliminary stage, and many controversial findings require further research. In order to present state-of-the-art status in this field, this review will primarily focus on the chemotoxicity of uranium, rather than its radiotoxicity, as well as the involved toxicological mechanisms. First, the natural or anthropogenic uranium contamination scenarios will be briefly summarized. Second, the health risks upon natural uranium exposure, for example, nephrotoxicity, bone toxicity, reproductive toxicity, hepatotoxicity, neurotoxicity, and pulmonary toxicity, will be discussed based on the reported epidemiological cases and laboratory studies. Third, the recent advances regarding the toxicological mechanisms of uranium-induced chemotoxicity will be highlighted, including oxidative stress, genetic damage, protein impairment, inflammation, and metabolic disorder. Finally, the gaps and challenges in the knowledge of uranium-induced chemotoxicity and underlying mechanisms will be discussed.
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Affiliation(s)
- Minghao Ma
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ruixia Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lining Xu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ming Xu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
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27
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Guo H, Chen Y, Hu H, Zhao K, Li H, Yan S, Xiu W, Coyte RM, Vengosh A. High Hexavalent Chromium Concentration in Groundwater from a Deep Aquifer in the Baiyangdian Basin of the North China Plain. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:10068-10077. [PMID: 32672450 DOI: 10.1021/acs.est.0c02357] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hexavalent chromium (Cr(VI)) is known to occur naturally in shallow oxic groundwater, typically from aquifers associated with mafic and ultramafic formations, but information on the occurrence of Cr(VI) in deep groundwater from large sedimentary basins is limited. This study shows that groundwater from the Baiyangdian Lake Basin (BYB), home to the future second capital city of China, had high Cr concentration (>10 μg/L, up to 86 μg/L) in the deep aquifer (>150 m), while shallow groundwater had lower Cr concentration (<10 μg/L). Chromium occurred predominantly as Cr(VI) (>95%). Shallow groundwater was characterized by higher Mn and Fe concentrations relative to deep groundwater, likely indicating more reducing conditions. Sequential extraction experiments from aquifer sediments suggest that Cr(VI) may derive from silicate weathering and that Mn oxides in the aquifer play a major role in the formation of Cr(VI) in groundwater. Inverse correlations between Mn and Cr(VI) suggest that reductive dissolution of Mn oxides constrains Cr(VI) mobilization in the shallow groundwater, while oxic-suboxic conditions in the deep aquifer limit Mn solubility, which enhances oxidation of Cr(III) to Cr(VI) and promotes desorption of Cr(VI) under alkaline conditions. This study demonstrates the potential geogenic occurrence of high Cr(VI) concentration in deep groundwater from a nonmafic, large sedimentary basin containing Mn oxides in the aquifer sediments.
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Affiliation(s)
- Huaming Guo
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences (Beijing), Beijing 100083, PR China
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, and School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, PR China
| | - Yi Chen
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, and School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, PR China
| | - Huiying Hu
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, and School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, PR China
| | - Kai Zhao
- China Institute for Geo-environmental Monitoring, Beijing 100081, PR China
| | - Haitao Li
- China Institute for Geo-environmental Monitoring, Beijing 100081, PR China
| | - Song Yan
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, and School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, PR China
| | - Wei Xiu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences (Beijing), Beijing 100083, PR China
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, and School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, PR China
| | - Rachel M Coyte
- Division of Earth and Ocean Sciences, Nicholas School of the Environment, Duke University, Durham, North Carolina 27708, United States
| | - Avner Vengosh
- Division of Earth and Ocean Sciences, Nicholas School of the Environment, Duke University, Durham, North Carolina 27708, United States
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